package system;

public class SystemDemo {

    public static void main(String[] args) {
        long start = System.currentTimeMillis();
        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <= i; j++) {
                System.out.printf("%d x %d = %d \t", j, i, (j * i));
            }
            System.out.println();
        }
        long end = System.currentTimeMillis();
        System.out.printf("程序运行时间为[%d]毫秒！", (end - start));
    }
}
